Heel-nailing machine.



No. 798,594. 'PATENTBD SEPTJ5, 1905. H'. BRIGGS.

HEEL NAILING' MACHINE.

APPLICATION FILED NOV. 7,1903.

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No. 798,594. PATENTED SEPT. 5, 1905. H. BRIGGS, HEEL NAILING MACHINE.

APPLICATION FILED NOT 7,1903- 6 SHEETS-SHEET 2.

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No. 798,594. PATBNTED' SEPT. 5, 1905.

Q E. BRIGGS.

HEEL NAILING MACHINE.

APPLICATION FILED NOV. 7,1903.

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PATENTED SEPT. 5, 1905.

H. BRIGGS. I HEEL NAILING MACHINE. APPLICATION FILED NOV. 7,1903.

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No. 798,594. PATENTED SEPT. 5, 1905.

H. BRIGGS.

HEEL NAILING MACHINE.

APPLICATION FILED NOV. 7,1903.

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waif 6W 44AM VWMZ UNITED STATES PATENT orrion.

HEEL-NAILING MACHINE.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed November 7, 1903. Serial No. 180,152.

To a whom it may concern:

Be it known that I, HENRY BRIGGS, a citizen of the United States,residing at Hasbrouck Heights, in the county of Bergen and State of NewJersey, have invented certain new and useful Improvements in HeelNailing Machines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The present invention relates to heel-nailing machines, and is intended,primarily, as an improvement on the heel-nailing machine disclosed in myprior application, Serial No. 100,443, filed March 28, 1902, although itis not limited thereto, but may be embodied in other forms ofheel-nailing machines.

The machine disclosed in my prior application above referred to isprovided with. a naildriving mechanism by which the heel-attach ingnails can be driven without the use of the heavy pressure which isnecessary when all the nails are driven simultaneously and without anyliability of displacing the heel upon the shoe or of failing to pressthe heel firmly into contact with the sole of the shoe on both sides.This nail-driving mechanism is arranged to successively drive groups ofthe heel-attaching nails, each group containing nails upon each side ofthe heel. One of the objects of the present invention is to stillfurther reduce the pressure required to drive the heel-attaching nailswhile insuring that the heel is not displaced upon the shoe and isfirmly pressed into contact with the sole of the shoe on both sides, andwith this object in view a feature of the present invention contemplatesproviding a nail-driving mechanism constructed and arranged to drive theheelattaching nails singly and successively and to drive nailsalternately on opposite sides of the heel. By driving the nails singlyand successively less pressure is required than when the nails aredriven in groups, and by driving nails alternately on opposite sides ofthe heel the heel is prevented from being displaced upon the shoe and isfirmly pressed into contact with the sole on both sides. In accordancewith this feature of my invention, broadly considered, the nail-drivingmechanism may be constructed and arranged to drive first a nail on oneside of the heel and then a nail on the other side or to drive a numberof nails on one side and then one or more nails on the other side, itbeing essential only that the driving mechanism be constructed andarranged to drive nails alternately on opposite sides of the heel, sothat displacement of the heel upon the shoe is prevented and a closecontact of the heel with the sole of the shoe on both sides is insured.In this connection I desire to state that I believe I am the first toprovide a nail driving mechanism constructed and arranged to drive nailsalternately upon opposite sides of the heel, and I therefore consider afeature of my invention to. consist in providing a heel-nailing machinewith such a nail-driving mechanism whether such mechanism is constructedand arranged to drive the nails singly or in groups, although I preferto employ a mechanism by which the nails are driven singly, as therebythe pressure required is reduced to a minimum.

The heel-nailing machine disclosed in my prior application is alsoprovided with means for forcing the top lift upon the heads of theheel-attaching nails progressively, the top lift being forced upon theheads of the nails two at a time, so that much less pressure is requiredthan in prior machines, by which the top lift is forced upon the headsof the nails simultaneously. Another object of the present invention isto still further reduce the pressure required to attach the top lift,and with this object in view a feature of my in vention contemplatesproviding a heel-nailing machine with means for forcing the top liftupon but one nail at a time. i

In addition to the features of the invention above referred to thepresent invention also consists in certain devices, combinations, andarrangement of parts hereinafter described and claimed, the advantagesof which will be obvious to those skilled in the art.

The various features of the present invention will be clearly understoodfrom the accompanying drawings, in which Figure l is a view in sideelevation of a heel-nailing machine embodying the preferred form of thesame. elevation of the cross head in which the driver-carriers aremounted, the driver-carriers, and other actuating-cams. Fig. 3 is a planview of that portion of the machine illustrated in Fig. 2. Fig. 4: is aface view' of the cams by which the driver-carriers are actuated. Fig. 5is a plan View of the cams Fig. 2 is a view in front illustrated inFig. 1. Fig. 6 is aplan view of a heel after the top lift has beenattached, indicating in dotted lines the positions of the heelattachingnails. Fig. 7 is a view in front elevation of two of the driver-carrierswhich drive corresponding nails upon opposite sides of the heel, showingthe positions which the two carriers assume with relation to each otherin the machine. Fig. 8 is a view in front elevation of thedriver-carrier illustrated in Fig. 7, which drives the nail upon theleft side of the heel as viewed in Fig. 6; and Fig. 9 is a view in rearelevation of the driver-carrier illustrated in Fig. 7, which drives thecorresponding nail upon the right side of the heel. Fig. 10 is a planview of the driver-carriers illustrated in Fig. 7. Fig. 11 is a bottomplan view of the top-lift carrier and spankerplate, and Fig. 12 is asectional view on the line 12 12 of Fig. 11.

With the exception of the driver-carriers, their actuating cams, and thesectional spanker-plate the machine illustrated in the drawings is thesame in construction, arrangement, and mode of operation as the machinedisclosed in my prior application, hereinbefore referred to. Since,however, the general construction and arrangement of the various partsof the machine are illustrated in the drawings accompanying thisapplication, they will be briefly described, reference being had to myprior application and to the patent to Pope, No. 4%,885, dated February24, 1891, referred to therein for a complete disclosure thereof.

The frame of the machine consists of a main portion 1 and asupplementaryportion 2, secured to the main portion.

3 indicates the main driving-shaftjournaled in the portion 1 of theframe and having loosely mounted thereon a balance-wheel 4:, which isprovided with an extended hub upon which are mounted fast and loosebelt-pulleys 5 and 6. A single revolution-clutch is provided, by meansof which the balance-wheel can be clutched t0 the driving-shaft 3, andthis clutch is controlled by means of a lever 7, connected by a link 8to a hand-lever 9, which extends into a convenient position to begrasped by the operator. Upon the front end of the shaft 3 is secured acam-disk provided with a cam-rib which is engaged on opposite sides bystuds or rolls 10 and 11, mounted upon a cross-head secured to the lowerends of two vertical rods 12 and 13, mounted to reciprocate in hearingsin the portion 1 of the frame. Upon the upper ends of the rods 12 and 13a cross-head 14 is secured, in which the driver-carriers are mounted andwhich supports the shaft of the cams by which the driver-carriers areactuated. Below the cross-head 1 1 is a stationary cross-head 15,secured to the upper bearings 18 (see Figs. 11 and 12) indicates atop-lift carrier which is pivotally mounted upon the upper bearing forthe rod 13 below the crosshead 15.

A shoe-supporting jack of well-known construction is indicated at 19 andis mounted to slide horizontally in guideways upon the upper surface ofa vertically-movable support 20. The support 20 is engaged by a verticalscrew-threaded shaft which is provided with a pinion meshing with arack-bar 21, mounted to slide in horizontal guideways in the mainportion of the machine-frame. The rack-bar 21 is connected, by means ofa link 22, to one arm of a bell-crank 23, the other arm of which isconnected, by means of a link 24:, to a lever v 25, provided with afoot-treadle 26..

'The construction so far described is such that after a shoe has beenplaced upon the jack and a heel has been placed in the heelholder 17 andswung into position beneath the cross-head the jack can be movedhorizontally upon the support to bring the heel portion of the solebeneath the heel, and the support 20 can be raised vertically bydepressing the treadle 26 to bring the sole of the shoe into contactwith the heel. When the parts are in this position, the lever 9 isactuated to cause the lever 7 to release the clutch between thebalance-wheel 4E and the shaft 3, and the shaft makes one completerevolution. During the revolution of the shaft 3 the crosshead 14: islowered to bring the nail-drivers into or in close proximity to theholes in the cross-head 15 and is held in this position during one-halfof the revolution of shaft 3 and is then returned to its upper position.During the downward movement of the cross-head 14 the support 20 isautomatically raised to firmly clamp the heel against the sole of theshoe upon the jack by means of cams which are actuated by leversconnected by means of links to collars secured to the rods 12 and 13.One of these cam-actuated levers is indicated in Fig. 1 at 27 and isconnected by means of a link 28 to a collar 29, secured to the rod 12.

While the cross-head 14: is in its lowered position the driver-carriersare actuated to cause the drivers to drive the nails. The

drivers are actuated by means of a series of cams secured to a shaft 30,mounted in bearings in upwardly-extending projections from thecross-head 14:. The shaft 30 is provided at its rear end with abevel-gear 31, which meshes with a bevel-gear 32, splined upon the upperend of a vertical shaft 33, journaled in hearings in the supplementalportion 2 of the frame. The rear end of the shaft 30' is provided with aroll or stud which engages a groove in the collar of bevel-gear 32, sothat during the vertical reciprocating movements of the cross-head 14the bevel-gear 32 is moved longitudinally on the shaft 33 and kept inmesh with the gear 31. The lower end of the shaft 33 is secured tobevel-gear 34, which meshes with a bevel-gear 35 upon the front end of ahorizontal shaft 36, journaled in the supplementary portion 2 of themachine-frames. Also journaled in the portion 2 of the machine-frame inline with the shaft 36 is a shaft 37, which is driven from the maindriving shaft 3 by means of a sprocket-chain 38, passing oversprocketwheels secured to the shafts, the sprocketwheels being soproportioned that the shaft 37 makes a complete revolution duringonehalf of a revolution of the shaft 3. Between the shafts 36 and 37 aclutch is provided which is controlled through suitable connections,being indicated in dotted lines in Fig. 1 and including a rock-shaft 39,provided at one end with an arm through which the device which directlycontrols the clutch is actuated, and at the other end with an arm whichis connected by a link 40 to the pivotal connection of the lever andlink at the opposite side of the machine corresponding to the lever 27and link 28. The clutch between the shafts 36 and 37 is asingle-revolution clutch, and the conn'ections for controlling theclutch are such that the clutch is released when the cross-head 14reaches its lowest position, so that the shafts 36 and 37 are connectedwhile the crosshead 14 is in its lowest position, and the shaft 30 iscaused to make a complete revolution before the cross-head begins itsupward movement. In order to prevent an overthrow of the shaft 30 whenthe shafts 36 and 37 are disconnected, a brake-lever 41 is provided, oneend of which bears against a cam 42, secured to the shaft 33, and theother end of which is provided with a brake-shoe which bears against acollar 43, secured to the shaft.

In the machine disclosed in my prior application the nail-drivercarriers consist of a series of plates mounted to reciprocate invertical guideways in the cross-head 14, and each plate is provided atits lower end with a number of nail-drivers, the construction andarrangement of the plates and nail-drivers being such that twocorresponding nails on opposite sides of the heel are driven by thedepression of each plate. In carrying out my present invention 1 haveprovided a greater number of reciprocating plates carrying naildriversat their lower ends and have so arranged the plates and nail-driversthat the depression of a plate acts to drive but a single nail. I havealso correspondingly increased the number of cams upon the shaft 30 foractuating the driver-carrier plates and have arranged the cams in such amanner that the driver-carrier plates are actuated to drive nailssuccessively and singly and to drive nails alternately upon oppositesides of the heel:

The construction and arrangement of the driver-carrier plates is clearlyillustrated in Figs. 7,8,9, and 10. Referring to these figures, 44indicates a driver-carrier plate the depression of which acts to drive anail on one side of the heel, and 45 indicates a driver-carrier platethe depression of which acts to drive the corresponding nail on theother side of the heel. These plates are provided at their lower endswith drivers 46,which pass through and are held in place by plates 47,secured to the lower ends of the plates 44 and 45, the upper ends of thenail-drivers bearing against wear-resisting plates 48. The two plates 44and 45 when assembled in the machine assume the relative positionsillustrated in Fig.7. The upper ends of the plates are recessed, asillustrated in Figs. 7, 8, 9, and 10, and overlap in order to bring therolls 49, journaled in the upper ends of the plates, in line. Therecesses at the upper ends of the plates are such that the plates can bedepressed and raised to their normal position independently of eachother. Below their recessed portions the adjacent edges of the platesare in contact, so that one plate forms a guide for the other. The otheredges of the plates are V-shaped and are received in corresponding V-shaped vertical guideways in plates 50, secured in an opening in thecross-head 14, as clearly illustrated in Fig. 3. Each plate is normallyheld in its raised position and is returned to such position after beingdepressed by means of a spring 51, coiled around a rod 52, secured inlugs projecting upwardly from the cross-head 14, one end of the springbeing in engagement with the cross-head and the other end of the springengaging a pin in the upper end of a link 53, secured to thedriver-carrier plate. 'JThedriver-carrier plates are provided withvertical elongated slots 54, through which pins 55, secured in thecrosshead 14, pass, the pins by engaging with the upper ends of theslots acting to positively withdraw the nail-drivers from the holes inthe cross-head 15 during the upward movement of the cross-head 14 incase the springs 51 fail to act.

The cams for depressing the driver-carrier plates while the cross-headis in its lowered position are indicated at 56 and are secured to theshaft 30, so as to rotate therewith. A cam is provided for eachdriver-carrier plate and is arranged to act upon a roll 49.' Therelative arrangement of the cams is clearly illustrated in Figs. 2, 3,4, and 5. From an inspection of these figures it will be apparent thatduring a single revolution of the shaft 30 the driver-carrier plates areactuated to drive the nails singly and successively and to drive nailsalternately on opposite sides of the heel. The order in which the nailsare driven is indicated in Fig. 6, in which the nail 57 at the lowerright-hand side of the heel is driven first, then the corresponding nail58 on the opposite side of the heel, then the nail 59 on the same sideof the heel as the nail 58, and then the nail 60 on the same side of theheel as the nail 57, the remaining nails being driven in the orderindicated by the numerals 61 to 66.

In carrying out that feature of my invention which relates to attachingthe top lift 1 have provided a top-lift holder and a sectionalspanker-plate which are moved into a position beneath the cross-head 15and above the heel of a shoe supported upon the jack. When the top-liftholder and sectional spanker-plate are in this position and thecross-head 14 and the driver-carrier plates are actuated in the samemanner as when the heel-attaching nails are driven, the nail-driversdepress the sections of the spanker-plate and force the top lift uponthe heads of the heel-attaching nails one at a time, the top lift beingforced upon the nails in the same order in which they are driven. Thetop-lift holder is illustrated separately in Figs. 11 and 12 and issubstantially the same in construction as the top-lift holder disclosedin my prior application. This toplift holder consists of a frameprovided with a rectangular opening in which the movable sections of thespanker-plate are mounted. Beneath the frame is a plate 67, pivotallymounted between ears projecting laterally from the frame. This plate isprovided with a rectangular opening of less width than the opening inwhich the sections of the spankerplate are mounted. The top lift is heldin the rectangular opening of the plate 67 by means of a stationaryclamping-jaw 68, adjustably secured to the plate, and a cooperatingmovable clamping-jaw 69. The clamping-jaw 69 is L-shaped, and one arm ismounted to slide in a guide formed in the plate 7 O, secured to theplate 67. The free end of the other arm of the'clamping-jaw 69 is guidedbetween the plate 67 and a plate 71, secured to the plate 67, and isacted upon by a coiled spring 72, one end of which is connected to theclamping-jaw and the other end of which is connected to a bracket 73,adjustably secured to the plate 67. The plate 67 is acted upon by aspring coiled around the pivotal stud of the plate. A bar 7 4 extendsacross the longitudinal openingin the frame of the toplift carrier anddivides the opening into two portions. In these two portions of therectangular opening the sections of the spankerplate are mounted, therebeing as many sections as there are nail-driver-carrier plates. The endsof the sections of the spankerplate adjacent to the bar 74:extend'beneath the bar, as illustrated in Fig. 12, so that the sectionswhen depressed act upon all portions of the top lift. The downwardmovement of the sections of the spanker-plateis limited by means ofplates 76, secured to the upper surface of the sections and extendinginto recesses in the bar 7 1 and in the sides of the rectangular openingin which the sections are mounted. The upward movement of the sectionsof the spanker-plate is limited by retaining-plates 77, secured to themain frame of the to p-lift holder and to the bar 7 4L. When the toplift holder and sectional spankerplate are in position beneath thecross-head 15 above the heel of a shoe supported upon the jack, eachsection of the spanker-plate is beneath the drivers of a driver-carrierplate, so that when the driver-carrier plates are actuated successivelythe sections of the spankerplate are also actuated successively, theplate 67 moving downwardly as the sections of the spanker-plate aredepressed and the top lift being forced upon the heads of theheel-attaching nails in the same order in which the nails are driven.

The operation of the various parts of the machine above described, andparticularly those parts which embody the present invention, have beenindicated in connection with the description of their construction andarrangement and will be readily understood without a separatedescription thereof.

Having thus indicated the nature and scope of my invention and havingparticularly described a construction embodying the same in itspreferred form, I claim as new and desire to secure by Letters Patent 1.A heel-nailing machine, having, in combination,a shoe-supporting jackand means for driving heel-attaching nails alternately on opposite sidesof the heel, substantially as described.

2. A heel-nailing machine, having, in combination,a shoe-supporting jackand means for driving the heel-attaching nails on each side of the heelsingly and alternately on opposite sides of the heel, substantially asdescribed.

3. A heel-nailing machine, having, in combination, a shoe-supportingjack, a driver-carrier for driving each heel attaching nail, driverscarried thereby. and means for actuating said driver-carriers to drivenails alternately on opposite sides of the heel, substantially asdescribed.

4. A heel-nailing machine, having, in combination, a shoe-supportingjack, a sectional spanker-plate provided with a section for eachheel-attaching nail, and means for actuating the sections of thespanker-plate successively to attach the top lift, substantially asdescribed.

5. A heel-nailing machine, having, in cornbination, ashoe-supportingjack, a driver-carrier for driving each heel attaching nail,

IIO

drivers carried thereby, a sectional spankerplate movable into aposition between the drivers and a shoe supported upon the jack, andmeans for actuating said driver-carriers successively, substantially asdescribed.

6. A heel-nailing machine, having, in combination, a shoe-supportingjack, and means for forcing the top lift upon the heel-attaching nailssuccessively one nail at a time, substantially as described.

In testimony whereof I affix my signature in presence of tWo Witnesses.

HENRY BRIGGS.

WVitnesses:

FRED O. FISH, ALFRED H. HILDRE'lI-I.

